🔧 Power Your Innovations with Confidence!
The 3V 1 Channel Relay Power Switch Module is designed for IoT applications, featuring opto-isolation for safety, dual power options for flexibility, and robust load handling capabilities. With a response time of less than 20 milliseconds and a long relay life, this module is perfect for developers looking to enhance their projects with reliable performance.
B**B
Appears to work well for now and at a good price
Needed a couple of these relays for a Raspberry Pi project, preliminary testing shows these work well, but I need to give this some running time to see how they will hold up over time.But for the price they appear to be well made, and if you pay attention to the proper supply voltage and current and the control voltage they should work well for you.For the 5V version that I got you should make sure that you have a good 5V supply that is able to supply enough current for the relay coil as well as your Raspberry PI or Arduino (or other controller board). If your supply can't provide enough current then you might find that the board won't work properly. The same thing is true if you aren't providing 5V power to the relay board, and be sure that you are providing the proper control voltage as well.I will see how these hold up over time.
S**2
Cheap and functional, triggers on 3.3V
Does what they need to do. I haven't used them all yet but so far the 5 I've used have worked fine. I can confirm they trigger fine on 3.3V (using the 5V pin for main power on ESP8266 things). Happy so far.
M**B
Great for Model Railroads of any scale! DCC and DCS friendly
I used these on a DCS O gauge layout to shut off power at the siding. Doing this at the siding verses at the panel reduces DCS signal loss and allows for smaller wire to be run to the switch panel. I think these would work great for switching accessories or sidings on and off for any scale model RR.
J**D
Good price and worked perfectly.
Great price and worked perfectly for my esp8266 automation project.
P**P
Great value!
Pros: Work as intended, easy to install.Cons: None so far
K**L
Switches on my amp for the subs in my truck!
2016 F150 super crew lariat. I used this to switch on the amp (and capacitor) for my sub woofers. Works great!
R**B
“High level control relay suction?”
I’m a hobbyist working with arduino uno and can’t get this to trigger but also confused about the inputs. Why are there three inputs to trigger: Vcc, In, and Gnd. “IN” is defined “high level control relay suction.” What??? Just trying to get it to trigger when I apply the arduino’s 3v to two inputs, but there are three here and no combination seems to work. Hope this isn’t too basic, but thanks for any help!!!
J**F
Works as advertised
Quick shipment, first 2 worked fine. Have yet to check the other 8. Good price.
Trustpilot
3 weeks ago
2 weeks ago